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-60- <br /> calculating sediment yields using 0.1 acre-feet per acre of disturbance. <br /> The Division recalculated sediment yields using the Universal Soil Loss <br /> Equastion (USLE) . Even when the Division used very conservative factors <br /> in the USLE, the sediment pond was found to be adequately sized. The <br /> emergency spillway is adequately sized to pass the 25-year, 24-hour peak <br /> flow. Since this pond is incised, dewatering to the maximum sediment <br /> storage level will be by pumping. <br /> The present zoning of the loadout area is agriculture or industrial, and <br /> the entire property is owned by Mid-Continent. The loadout has been at <br /> its present location since 1956. Two commerical businesses adjoin the <br /> loadout permit area. At the end of mining, Mid-Continent proposes to <br /> convert the property to some other commercial business. The offices will <br /> remain and the coal storage slot bin will be converted into a warehouse. <br /> The conveyor belts and the coal loadout tipple will be removed. The <br /> railroad spur will remain, and the ground surface will remain the same, <br /> with the exception that additional buildings may be constructed. <br /> Mid-Continent has proposed an alternate reclamation plan if the loadout <br /> is not reclaimed to a commercial business, which calls for removing all <br /> existing structures, grading the area to approximate original contour and <br /> revegetating with native shrubs, grasses and forbs. / r <br /> 1 <br /> Based on the above discussion, the Division hereby approved the k S� <br /> industrial post-mining land use and the alternative land use /t <br /> W <br /> �th the exception of an alluvial galley floor adJaent to the loadout <br /> facility, which is discussed in the alluvial valley floor section, no <br /> other problems were noted with the loadout facility. <br /> Steep Slope Mining <br /> O <br /> rdequ <br /> esponse to comments contained within the Division's Preliminary <br /> acy review, Mid-Continent Resources, Inc. submitted a request for <br /> variance from approximate original contour requirements based upon steep <br /> ,(�, slope mining conditions, in accordance with the requirements of Rule <br /> Q Li <br /> 2.06. 5. The majority of the surface facility disturbances for roads and <br /> mine portal benches exists in areas of original slope greater than <br /> 200. The applicant has requested that these areas be returned to <br /> • various post-mining topographic configurations, a portion of which differ <br /> ` from approximate original contour. This request is judged appropriate oy <br /> �Y the Division in the case of the Coal Basin dines. However, additional <br /> data and detailed reclamation designs are being required through <br /> stipulations in other sections of this Findings Document. For discussion <br /> pertaining to these topics, see Section XVII, "Backfilling and Grading", <br /> and Section XX, "Roads". <br /> .iith satisfactory resolution of the stipulations in the "Roads" and <br /> "Backfilling and Grading" sections of this document, the proposea <br /> operation will oe in compliance with the requirements of this section. <br />